Zobrazeno 1 - 10
of 480
pro vyhledávání: '"MA Jiajun"'
Publikováno v:
Cailiao gongcheng, Vol 51, Iss 10, Pp 136-145 (2023)
The 6061 aluminum alloy was prepared by powder metallurgy method, and the effects of ball milling time and solution-aging treatment on microstructure and mechanical properties of the extruded alloy were studied by means of optical microscopy, scannin
Externí odkaz:
https://doaj.org/article/a3c095b43c5244718199b7924248755c
Publikováno v:
智慧农业, Vol 5, Iss 2, Pp 45-55 (2023)
ObjectiveTo address the problems of low efficiency and high cost of traditional manual identification of pests and diseases, improve the automatic recognition of pests and diseases by introducing advanced technical means, and provide feasible technic
Externí odkaz:
https://doaj.org/article/0944d35fa4094709a919aec4298ea61b
Autor:
Xia Jiangying, Zhang Xiaojuan, Zhou Kaiming, Zhang Lin, Wang Erlei, Du Wenyu, Ma Jiajun, Li Siqi, Xie Kang, Yu Benli, Zhang Junxi, Hu Zhijia
Publikováno v:
Nanophotonics, Vol 12, Iss 4, Pp 761-771 (2023)
Replica symmetry breaking (RSB) has been widely recognized as a statistical analysis approach to understand the disorder and nonlinear interactions in complex systems ranging from atoms to the cosmic scale. However, it is challenging to analyze the n
Externí odkaz:
https://doaj.org/article/6dd073188f4d456f95c8910435928929
Autor:
Liu Yi, Ouyang Chunmei, Xu Quan, Su Xiaoqiang, Ma Jiajun, Zhao Jing, Li Yanfeng, Tian Zhen, Gu Jianqiang, Liu Liyuan, Han Jiaguang, Zhang Weili
Publikováno v:
Nanophotonics, Vol 11, Iss 9, Pp 1977-1987 (2021)
Hyperbolic metasurfaces with unique dispersion properties can manipulate light–matter interactions according to the demands. However, due to their inherent physical properties, topological transitions (flat bands) exist only in the orthogonal direc
Externí odkaz:
https://doaj.org/article/74f503777f334bbb90a38fdce3477ece
Autor:
Huang Yunxi, Zhang Xiaojuan, Yu Benli, Ma Jiajun, Xie Kang, Cheng Sheng, Zhang Junxi, Hu Zhijia
Publikováno v:
Nanophotonics, Vol 10, Iss 13, Pp 3541-3547 (2021)
In waveguided nematic liquid crystal random lasers (NLCRLs), we realize polarized random laser (RL) emission and discover that the waveguide effect reduces the transmission loss of the RL whose polarization is parallel to the liquid crystal molecules
Externí odkaz:
https://doaj.org/article/1314949b3fbc43db89cb3da6d1b4665a
Autor:
Xia Jiangying, Xie Kang, Ma Jiajun, Chen Xianxian, Li Yaxin, Wen Jianxiang, Chen Jingjing, Zhang Junxi, Wu Sizhu, Cheng Xusheng, Hu Zhijia
Publikováno v:
Nanophotonics, Vol 7, Iss 7, Pp 1341-1350 (2018)
This paper systematically demonstrated a variety of experimental phenomena of random lasers (RLs) of N,N′-di-(3-(isobutyl polyhedral oligomeric silsesquioxanes)propyl) perylene diimide (DPP) organic/inorganic hybrid laser dye, which is composed of
Externí odkaz:
https://doaj.org/article/be5a8935a1e04024bf177ecad3ec5249
Autor:
Ma, Jiajun, Xue, Shuchen, Hu, Tianyang, Wang, Wenjia, Liu, Zhaoqiang, Li, Zhenguo, Ma, Zhi-Ming, Kawaguchi, Kenji
With the incorporation of the UNet architecture, diffusion probabilistic models have become a dominant force in image generation tasks. One key design in UNet is the skip connections between the encoder and decoder blocks. Although skip connections h
Externí odkaz:
http://arxiv.org/abs/2402.15170
Ignoring the differences between countries, human reproductive and dispersal behaviors can be described by some standardized models, so whether there is a universal law of population growth hidden in the abundant and unstructured data from various co
Externí odkaz:
http://arxiv.org/abs/2402.04612
Guidance in conditional diffusion generation is of great importance for sample quality and controllability. However, existing guidance schemes are to be desired. On one hand, mainstream methods such as classifier guidance and classifier-free guidance
Externí odkaz:
http://arxiv.org/abs/2310.11311
Self-supervised learning (SSL) aims to learn intrinsic features without labels. Despite the diverse architectures of SSL methods, the projection head always plays an important role in improving the performance of the downstream task. In this work, we
Externí odkaz:
http://arxiv.org/abs/2301.12189